NAME

       ffcfstress - constant force stress test for force-feedback devices

SYNOPSIS

       ffcfstress  [-d  <device>]  [-u  <update  rate>]  [-f  <frequency>]  [-a  <amplitude>] [-s
       <strength>] [-x <axis>] [-A] [-o]

DESCRIPTION

       ffcfstress stress tests constant non-enveloped forces on  a  force  feedback  device.   It
       simulates a moving spring force by applying a frequently updated constant force effect.

       Beware, the stress test may damage your device!

OPTIONS

       At least one option is required.

       -d <device>
              The device to test (by default /dev/input/event0).

       -u <update rate>
              The update rate in Hz (25 by default).

       -f <frequency>
              The spring center motion frequency in Hz (0.1 by default).

       -a <amplitude>
              The spring center motion amplitude, between 0.0 and 1.0 (1.0 by default).

       -s <strength>
              The spring strength factor (1.0 by default).

       -x <axis>
              absolute axis to test (default: 0)
              [0 = X, 1 = Y, 2 = Z, 3 = RX, 4 = RY, 5 = RZ, 6 = WHEEL]

       -A     switch off auto-centering

       -o     Dummy option, useful when all defaults should be used.

SEE ALSO

       ffmvforce(1), fftest(1), jstest(1).

AUTHOR

       ffcfstress was written by Oliver Hamann.

       This  manual  page  was  written by Stephen Kitt <steve@sk2.org>, for the Debian GNU/Linux
       system (but may be used by others).  It was last modified for  ffcfstress  dated  February
       15, 2002.